Improvement in barbed fence-wires



0. P. WASHBURN, Barbed Fence-Wire.

NO. 200,494. Patented Feb. 9,1878.

NJFETERS. PNDTO-LI'TFIOGRAPHER WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

CHARLES F. WASHBURN, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN BARBED FENCE-WIRES.

Specification forming part of Letters Patent No. 200,494, dated February19,1878; application filed November 17, 1876.

To all whom it may concern:

Be it known that I, OHARLEs F. WASH- BURN, of the city and county ofWorcester, and Commonwealth of Massachusetts, have invented certain newand useful Improvements in Barbed Fence-Wire and I do hereby declarethat the following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, and the letters ofreference marked thereon, formin g a part of this specification, and inwhich- Figure 1 represents a piece or section of wire, showing themanner in which it is first bent in the process of making my improvedbarbed fence-wire. Fig. 2 represents the form of the same at asubsequent stage of manufacture. Fig. 3 represents the manner in whichthe loops, formed as illustrated in Figs. 1 and 2 of the drawings, aretwisted back about the main wire or wires, and before the ends of thesaid loops are cut off to form the barbs. Fig. 4 represents the loopsshown in Fig. 3 cut off pointed to form barbs, as will be hereinaftermore fully described. Fig. 5 represents a section taken on line A B,Fig. 4, looking inthe direction of arrow 1, same figure.

My invention relates to improvements in wire fences and consists in abarb fence-wire formed from a single strand of wire, so looped togetherand cut as to form four barbs or points.

To enable those skilled in the art to which my invention pertains tomake and use the same, I will proceed to describe it more in detail.

In the accompanying drawings, the parts marked A represent the mainstrand or strands of wire; and B B, loops formed by bending portions a bof the main wire, as indicated in the drawings.

In the process of manufacture the wire is first bent by preference intothe form shown in Fig. 1 of the. drawings. The part c of main wire A, inthis instance, is then bent back around one of the loops B, so that theparts occupy the relative positions shown in Fig. 2. Loops B B are nowtwisted around the main wire A, as shown at B, Fig. 3 of the drawings,after which the barbs are completed by cutting the ends at of loops B,so that they will form four pointed ends or barbs, e, which may be bentto project as shown in Fig. 5.

When making the barbs from a single wire, instead of looping the part c,as shown in Fig. 2, the upper loop B may be twisted around the part0 ofthe main wire, and the lower loop B twisted about the part f of the mainwire A.

Having described my improvements in barbed fence-wire, I would observe Iam aware that Letters Patent were granted to Jacob Haish on the 20th dayof January, 187 4, and numbered 146,671, for improvement in wire fences,and I hereby disclaim the invention or improvement in wire fences shownand described in said Letters Patent, and therefore I do not claim,broadly, the combination of two sections of main wire having twists andtwo or more points or barbs; but

What I do claim, and desire to secure by Letters Patent, is-

1. A barbed fence-wire formed from a single strand of wire, loopedtogether and cut to form four points or barbs at given distances apart,substantially as described.

2. The combination, with the parts 0 and f of the sections of main wireor wires A, of the twists B B, and four points or barbs, e,substantially as and for the purposes set forth.

- CHAS. F. WASHBUBN.

Witnesses:

Tnos. H. DODGE, EDWIN E. MOORE.

